4x8 Pin to 12VHPWR 90° Angled Extension Cable 600W PCIe 5.1 16AWG, 12V-2x6 H++ Connector for RTX 5090/5080/4090/4080, 5.9in Short Sleeved Adapter for PSU with 4 PCIe Ports (Type A)

1. COMPLETE 4X8PIN INPUT FULL 600W FOR RTX 5090 & 4090 This is a 4x8pin to 12VHPWR adapter, designed to meet the full 600W power delivery required by flagship GPUs. Featuring four (4) individual 8pin PCIe female connectors, this cable distributes the power load across four separate PSU ports. The RTX 5090 officially requires 4 x 8pin PCIe cables when not using a native 12V2x6 PSU. Each of the four 8pin inputs must be connected this is not a 3x8pin cable.
2. 12V2x6 H++ CONNECTOR PCIe 5.1 & ATX 3.1 COMPLIANT, 675W CAPABLE Equipped with the latest PCISIG standard 12V2x6 H++ connector from the ATX 3.1 / PCIe 5.1 specification, featuring shorter sense pins that ensure full insertion before power is delivered. The H++ design supports up to 675W peak power, providing a generous safety margin for RTX 5090 (575W TDP). Fully compatible with both 12VHPWR and 12V2x6 GPU ports.
3. 90° ANGLED CONNECTOR ONLY 20MM SIDE PANEL CLEARANCE Factorymolded 90° angled connector eliminates the need to bend cables near the GPU port the #1 cause of connector failure. Requires only 20mm of clearance from the side panel, allowing you to install wide GPUs in compact cases. Unlike risky adapters that have been recalled, this is a full cable, not a removable adapter, providing a safer singlepiece solution.
4. SHORT 5.9INCH (15CM) LENGTH PERFECT FOR ITX & SFF BUILDS Total length of just 15cm (5.9 inches) eliminates cable clutter in ITX and small form factor builds. The short length naturally helps maintain the required straight approach to the GPU connector (no bending within 35mm), reducing the risk of connector failure. Perfect for compact cases where standard 3070cm cables create impossible slack.
5. 16AWG PREMIUM CONSTRUCTION HIGH THERMAL ENDURANCE Built with highquality 16AWG tinned copper wire, capable of carrying up to 55A of current with 105°C temperature rating. The premium 12V2x6 connector features highcurrent terminals rated for reliable power delivery. Handtighten only no tools required.
6. TYPE A (4PIN ON BOTTOM) CORRECT ORIENTATION FOR STANDARD GPUs Type A configuration positions the 4pin sense wires on the bottom side of the connector (closer to the GPU PCB), ensuring full insertion without interference. If your GPU has components or capacitors directly below the power connector (e.g., some ASUS ROG STRIX cards), you may need Type B.
7. EXTENSION CABLE USE WORKS WITH ALL PSU BRANDS This is an extension cable it connects to your power supplys existing 8pin PCIe male cables, NOT directly to the PSUs modular ports. Works with ALL PSU brands (Corsair, EVGA, Seasonic, ASUS, Thermaltake, Cooler Master, etc.) as long as your PSU has four (4) available 8pin PCIe outputs.

NVIDIAs flagship RTX 5090 requires up to 575W of power. To deliver this safely without a native 12V2x6 power supply, the official specification calls for four (4) individual 8pin PCIe cables. Our 4x8Pin to 12VHPWR 90° Angled Extension Cable meets this requirement exactly distributing the full 600W load across four separate PSU ports for maximum safety and performance.

Why 4x8Pin Instead of 3x8Pin?

Feature 3x8Pin CableOur 4x8Pin Cable

Total Power Capacity 450W 600WRTX

5090 Support Limited to 450W (~5% performance loss) Full 600W zero performance loss

RTX 4090 Support Limited Full 600W

RTX 5080 Support 360W sufficient but no headroom Full 600W generous headroom

Safety Margin for 5090 Insufficient (450W < 575W TDP) Ample (600W capacity)

RTX 5090 can technically run on 3x8pin cables at reduced power, but youll sacrifice performance. For uncompromised performance and safety, 4x8pin is the proper specification.

This cable features the latest 12V2x6 H++ connector from the ATX 3.1 / PCIe 5.1 specification. The H++ marking indicates terminals rated for 9.2A per pin or higher, supporting up to 675W peak power. The shorter sense pins ensure full insertion before power is delivered a critical safety improvement over earlier 12VHPWR designs.

Why a Full Cable, Not a Removable Adapter?

Feature Removable Angled Adapter Our Full Extension Cable

Safety Track Record CableMod issued recall for melted adapters No removable connection point safer

Connection Points 2 (adapter + cable) 1 (continuous cable)

Risk Factor Higher adapter can loosen over time Lower single continuous path

Unlike risky removable adapters that have been recalled due to melting hazards, this is a full cable not a removable adapter. Fewer connection points mean fewer potential failure points.